Mercurial > pub > Impl
annotate Lib/IMPL/Object/Abstract.pm @ 355:8dfb9df07d02
added support for the custom resolvers for the TTView
| author | sergey |
|---|---|
| date | Thu, 17 Oct 2013 01:04:37 +0400 |
| parents | 97628101b765 |
| children | 82b6c967bcf1 |
| rev | line source |
|---|---|
| 49 | 1 package IMPL::Object::Abstract; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
| 166 | 5 use parent qw(IMPL::Class::Meta); |
| 49 | 6 |
| 7 our $MemoryLeakProtection; | |
| 8 my $Cleanup = 0; | |
| 9 | |
| 10 my %cacheCTOR; | |
| 11 | |
| 12 my $t = 0; | |
| 13 sub cache_ctor { | |
| 14 my $class = shift; | |
| 15 | |
| 16 no strict 'refs'; | |
| 17 my @sequence; | |
| 18 | |
| 19 my $refCTORS = *{"${class}::CTOR"}{HASH}; | |
| 20 | |
| 21 foreach my $super ( @{"${class}::ISA"} ) { | |
| 194 | 22 my $superSequence = $cacheCTOR{$super} || cache_ctor($super); |
| 23 | |
| 24 my $mapper = $refCTORS ? $refCTORS->{$super} : undef; | |
| 25 if (ref $mapper eq 'CODE') { | |
| 26 if ($mapper == *_pass_through_mapper{CODE}) { | |
| 27 push @sequence,@$superSequence; | |
| 28 } else { | |
| 29 push @sequence, sub { | |
| 30 my $this = shift; | |
| 31 $this->$_($mapper->(@_)) foreach @$superSequence; | |
| 32 } if @$superSequence; | |
| 33 } | |
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34 } elsif ($mapper and not ref $mapper and $mapper eq '@_') { |
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35 push @sequence,@$superSequence; |
| 194 | 36 } else { |
| 37 warn "Unsupported mapper type, in '$class' for the super class '$super'" if $mapper; | |
| 38 push @sequence, sub { | |
| 39 my $this = shift; | |
| 40 $this->$_() foreach @$superSequence; | |
| 41 } if @$superSequence; | |
| 42 } | |
| 49 | 43 } |
| 44 | |
| 45 push @sequence, *{"${class}::CTOR"}{CODE} if *{"${class}::CTOR"}{CODE}; | |
| 46 | |
| 47 $cacheCTOR{$class} = \@sequence; | |
| 48 return \@sequence; | |
| 49 } | |
| 50 | |
| 90 | 51 sub dump_ctor { |
| 194 | 52 my ($self) = @_; |
| 53 $self = ref $self || $self; | |
| 54 | |
| 55 warn "dumping $self .ctor"; | |
| 56 warn "$_" foreach @{$cacheCTOR{$self}||[]}; | |
| 90 | 57 } |
| 58 | |
| 49 | 59 sub callCTOR { |
| 60 my $self = shift; | |
| 61 my $class = ref $self; | |
| 62 | |
| 63 $self->$_(@_) foreach @{$cacheCTOR{$class} || cache_ctor($class)}; | |
| 64 } | |
| 65 | |
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66 sub _init_dtor { |
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67 my ($class) = @_; |
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68 |
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69 no strict 'refs'; |
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70 |
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71 # avoid warnings for classes without destructors |
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72 no warnings 'once'; |
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73 |
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74 my @dtors; |
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75 |
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76 my @hierarchy = ($class); |
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77 my %visited; |
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78 |
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79 while(my $subclass = shift @hierarchy) { |
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80 if(*{"${subclass}::DTOR"}{CODE}) { |
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81 push @dtors, *{"${subclass}::DTOR"}{CODE}; |
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82 } |
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83 |
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84 push @hierarchy, @{"${subclass}::ISA"}; |
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85 } |
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86 |
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87 if (@dtors) { |
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88 |
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89 return *{"${class}::callDTOR"} = sub { |
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90 my ($self) = @_; |
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91 my $selfClass = ref $self; |
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92 if ($selfClass ne $class) { |
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93 goto &{$selfClass->_init_dtor()}; |
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94 } else { |
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95 map $_->($self), @dtors; |
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96 } |
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97 } |
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98 |
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99 } else { |
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100 return *{"${class}::callDTOR"} = sub { |
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101 my $self = ref $_[0]; |
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102 |
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103 goto &{$self->_init_dtor()} unless $self eq $class; |
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104 } |
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105 } |
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106 } |
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107 |
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108 __PACKAGE__->_init_dtor(); |
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109 |
| 49 | 110 sub toString { |
| 111 my $self = shift; | |
| 112 | |
| 113 return (ref $self || $self); | |
| 114 } | |
| 115 | |
| 280 | 116 sub _typeof { |
| 194 | 117 ref $_[0] || $_[0]; |
| 93 | 118 } |
| 119 | |
| 49 | 120 sub isDisposed { |
| 121 0; | |
| 122 } | |
| 123 | |
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124 sub DESTROY { |
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125 shift->callDTOR(); |
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126 } |
| 49 | 127 |
| 128 sub END { | |
| 129 $Cleanup = 1; | |
| 130 } | |
| 131 | |
| 174 | 132 sub _pass_through_mapper { |
| 49 | 133 @_; |
| 134 } | |
| 135 | |
| 136 sub PassArgs { | |
| 174 | 137 \&_pass_through_mapper; |
| 49 | 138 } |
| 139 | |
| 140 sub PassThroughArgs { | |
| 141 my $class = shift; | |
| 142 $class = ref $class || $class; | |
| 143 no strict 'refs'; | |
| 144 no warnings 'once'; | |
| 174 | 145 ${"${class}::CTOR"}{$_} = \&_pass_through_mapper foreach @{"${class}::ISA"}; |
| 49 | 146 } |
| 147 | |
| 148 package self; | |
| 149 | |
| 150 our $AUTOLOAD; | |
| 151 sub AUTOLOAD { | |
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152 goto &{caller(). substr $AUTOLOAD,4}; |
| 49 | 153 } |
| 154 | |
| 155 package supercall; | |
| 156 | |
| 157 our $AUTOLOAD; | |
| 158 sub AUTOLOAD { | |
| 159 my $sub; | |
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160 my $methodName = substr $AUTOLOAD,9; |
| 49 | 161 no strict 'refs'; |
| 162 $sub = $_->can($methodName) and $sub->(@_) foreach @{caller().'::ISA'}; | |
| 163 } | |
| 164 | |
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165 1; |
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166 |
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167 __END__ |
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168 |
| 49 | 169 =pod |
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170 =head1 SYNOPSIS |
| 49 | 171 |
| 172 package MyBaseObject; | |
| 166 | 173 use parent qw(IMPL::Object::Abstract); |
| 49 | 174 |
| 175 sub new { | |
| 176 # own implementation of the new opeator | |
| 177 } | |
| 178 | |
| 179 sub surrogate { | |
| 180 # own implementation of the surrogate operator | |
| 181 } | |
| 182 | |
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183 =head1 DESCRIPTION |
| 49 | 184 |
| 180 | 185 Реализация механизма вызова конструкторов и других вспомогательных вещей, кроме операторов |
| 186 создания экземпляров. | |
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187 |
| 49 | 188 =cut |